* Fixed a lot of warnings and removed waste code
* Fixed more warnings and removed more waste code
* restore XrefsDialog::updateLabels
This function is used in memorywidget.cpp
* Check if file exist before opening
When opening a file writing its path directly on the textfield, it wasn't checking if exists (also it wasn't adding it to recent list)
* Update newfiledialog.cpp
* Set Organization- and ApplicationName QApp wide
- Setting this here removes the redundancy to write the names every time a QSettings object is needed
* removed redundant QSettings parameter
